Single-player games like Cosmonator
Below are 11 single-player Steam games similar to Cosmonator, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Cosmonator page.
Ranked picks
- 1
Beyond Solar
Single-player alternative to Cosmonator — playable solo, no multiplayer required. Shares Action and Indie with Cosmonator.
Beyond Solar is an intense pixel art bullet hell shooter that captures the feel of retro arcade classics while introducing modern systems. Master tight controls, dodge relentless enemy patterns, and survive increasingly chaotic encounters through skill and smart decision-making.
- 2
Neon Invaders
Single-player alternative to Cosmonator — playable solo, no multiplayer required. Shares Action with Cosmonator.
Neon Invaders will take you back to your gaming roots with its constant action and relentlessly brutal enemies. Absorb enemy shots of the same colour to trigger a flurry of fire to decimate the alien invaders. Dodge and Match your way to victory through 40 levels and 5 difficulty settings.
- 3
Stop the Saturnians!
Single-player alternative to Cosmonator — playable solo, no multiplayer required. Shares Action with Cosmonator.
Stop the Saturnians is a shooter inspired by classic arcade games. Dodge enemy fire, destroy procedurally generated alien waves and fight massive bosses. Collect resources in the midst of combat to upgrade your ship or improve Earth's defenses. Protect yourself and the planet both!
- 4
Royal Odyssey
Single-player alternative to Cosmonator — playable solo, no multiplayer required. Shares Action and Indie with Cosmonator.
Royal Odyssey is a retro-style arcade space shooter where you pilot Prince Zayven’s ship through a deadly asteroid storm, blasting your way to survival.
- 5
Xentron Attack
Single-player alternative to Cosmonator — playable solo, no multiplayer required. Shares Action and Indie with Cosmonator.
Xentron Attack is a multi-directional shooter. The evil alien forces called Xentron have invaded your galaxy and spreading dangerous meteors and missiles in the space. Fight with smart enemies who calculates your movements. Turn your ship precisely and use the borderless space wisely.
- 6
Silent Sector
Single-player alternative to Cosmonator — playable solo, no multiplayer required. Shares Action and Indie with Cosmonator.
Oldschool action open-world sci-fi with a unique storyline, frenetic battles, crude humor, loose morals and cows.
- 7
Sky Force Reloaded
Single-player alternative to Cosmonator — playable solo, no multiplayer required. Shares Action and Indie with Cosmonator.
Sky Force Reloaded is a classic shoot ‘em up experience packed in gorgeous visuals and excellent gameplay. Enjoy flashy explosions, beautiful scenery and massive bosses in single player or local cooperative modes.
- 8
Alien Breed 3: Descent
Single-player alternative to Cosmonator — playable solo, no multiplayer required. Shares Action with Cosmonator.
Experience the final explosive chapter in the Alien Breed series and uncover the horrifying truth surrounding the existence of the Breed. Launch discount good thru Nov. 24 10am PST.
- 9
Stardust Galaxy Warriors: Stellar Climax
Single-player alternative to Cosmonator — playable solo, no multiplayer required. Shares Action and Indie with Cosmonator.
Stardust Galaxy Warriors: Stellar Climax is a fast-paced couch co-op action shooter with SHMUP/Brawler gameplay and RPG elements. Choose your mechs, weapons & upgrades then soar through space, defeat evil & save the future... from itself!
- 10
Raptor: Call of The Shadows - 2015 Edition
Single-player alternative to Cosmonator — playable solo, no multiplayer required. Shares Action with Cosmonator.
The great action-crazed, guns blazing, shoot ‘em up game comes back straight out of the ‘90s. Raptor: Call of the Shadows and its futuristic world are ready to challenge your flying skills.
- 11
Raptor: Call of the Shadows (1994 Classic Edition)
Single-player alternative to Cosmonator — playable solo, no multiplayer required. Shares Action with Cosmonator.
Become a mercenary of the future and pilot the super-tech Raptor. Embark on interplanetary missions to knock off top competitors of MegaCorp, battle against hordes of relentless enemies and spend the bounty to expand your devastating arsenal, which can be upgraded with 14 hardcore weapons!